KUBOTA HORIZONTAL - Allclass

KUBOTA HORIZONTAL
WATER-COOLED DIESEL ENGINE
RKIERIKND Series
Displacement. 305 cc~ 1,181 cc
Maximum Output. 5.0 HP-25.0 HP

R K70-N
R K80-1
R K95-1-N B
R K125-2
SPECIFICATIONS
RK50
RK50-N
RK50H
R K50-N B
Model RK50 RK50-N RK50H RK50-NB
Type
Horizontal water-cooled, 4-cycle diesel engine
Number of cylinders 1
Bore x stroke [mm (in .)] 72 x 75 (2 .83 x 2 .95)
Displacement [cc (cu .in .)] 305(18 .61)
Maximum output
Continuous rated output
(HP/r . p . m .) 5 .0/2400
(kW/r . p . m .) 3 .73/2400
(HP/r . p . m .) 4 .5/2200
(kW/r .p.m .) 3 .36/2200
Maximum torque (kgf-m/r .p.m .) 1 .62/1800
Specific fuel consumption
(at continuous rated output)
Combustion system
(g/HP-hr)
208
Three vortex combustion system
Compression ratio 24
Direction of revolution
Counter-clockwise (facing flywheel)
Starting system Manual speed-doubling handle I Cell start
Lubricating system
Forced lubrication with trochoid pump
Cooling system Radiator Hopper Radiator
Fuel
Light diesel oil (SAE No .2-D)
Lubricating oil
API service CB-CC class
(SAE #30, 20, 10W-30)
Cooling water capacity [L (US gal .)] 1 .3 (0 .34) 8 .5 (2 .25) 1 .3 (0 .34)
Fuel tank capacity [L (US gal .)] 7 .5(l .98)
Crankcase oil capacity [L (US gal .)] 2 .0 (0 .53)
Dry weight [kg (Ibs .)] 64 (141 .1) 62 (136 .7) 72 (158 .8)
Lamp and dynamo output
(V-W)
with lamp
12-45
without lamp
Charge output (V-A) - 12-1 .6
Starter power (V-kW) - - 12-1 .0
-
PERFORMANCE
CURVES
R K50/R K50-N/R K50H/R K50-N B
""""""".._.
15rI15
"unn " Et
""
J13
kgm Nm
nnnr
""_".!..
3
a
2
3
kl'J RP
"~n"n~~in"
O
v~~
U
~U.yL~CpOUM ®TIO~~
um"®n"
1220[~gpu
9kp~
~~~~~wo
4kwa1
1200 1aw3 iGW 1eeo 2" 22W 1100a-
20 25 30 35 401 .
ENGINE REVOLUTION

DIMENSIONS (mm)
K
A
B
oo [a
q
IL
J _ _ _
I ~
1 1p S V E
R W 4-11 ¢HOLE F
L
Model A B C D E F G H I J K L M N O P Q R S T U V W
RK50(N) 650 236 492 419 - 182 103 140 435 322.5 175.5 306 0355 29 120 70 70 124 - 154 12 64 .4 171
RK60 N) 650 236 492 419 - 182 103 140 435 322.5 175.5 306 10355 36 120 70 70 131 - 154 12 64 .4 171
RK70 N 650 236 492 419 - 182 103 140 435 322.5 175.5 306 0355 43 120 70 70 138+-- 154 12 64 .4 171
RK80-1 N 715 251 516 448.5 77 .6 199 124 150 467 358 196 334 0362 36 132.5 72 68 140 98 160 8 - -
R K95-1 N 715 251 516 448.5 77 .6 199 124 150 467 358 196 334 0370 43 132.5 72 68 147 98 160 8 - -
RK105-2(N 755.5 259 521 458.5 80 .5 212 111 155 474 369.5 201 .5 341 .5 03801 45 135.5 75 95 152 - 170 10 - -
R K125-2(N) 755.5 259 521 458.5 80 .5 212 111 155 474 369.5 201 .5 341 .5 0380 50 135.5 75 95 157 - 170 10 - -
J
K
A
B
I " I
0 0 11
11
1 p f 1 - _ `rI
0 5
R W
L
V E
4-11 1LE O
F G
Model A B C D E F G H I J K L M N O P Q R S T U V W
RK50NB 664.5 250.5 492 419 - 182 103 140 435 322.5 175.5 306 0350 42 120 70 70 144 - 154 12 64 .4 171
RK60NB 664.5 250.5 492 419 - 182 103 140 435 322.5 175.5 306 0350 42 120 70 70 144 - 154 12 64 .4 171
RK70NB 664.5 250.5 492 419 - 182 103 140 435 322.5 175.5 306 0350 42 120 70 70 144 - 154 12 64 .4 171
RK80-1 NB 763 299 516 448.5 77 .6 199 124 150 467 358 196 334 0370 40 132.5 72 68 147 98 160 8 - -
RK95-1 NB 763 299 516 448.5 77 .6 199 124 150 467 358 196 334 0370 40 132.5 72 68 147 98 160 8 - -
RK105-2-NB 802 306 521 458.5 80 . 212 l 11 155 474 369.5 201 .5 341 .5 0380 45 135.5 75 95 150 - 170 10 - -
RK125-2-NB 802 1306 521 458.5 80 .5 1212 1 111 1 155 474 1369 .5 1201 .5 341 .5 1 0380 45 1135 .5 75 95 150 - 170 10 - -
B
G 7 111
`~ _"~
. . .
1.
NII-~ R
o
R
_I
Q
s
~W
L
-
4-11¢HOLE
___
F
V
G
I Model A B -CD E F G H I J K L M N O P Q R S T U V W
RK50H 645 231 492 452 - 182 103 140 436 322.5 175.5 306 103551 29 120 70 70 124 - 154 12 64 .4 171
RK60H 645 231 492 452 - 182 -10-3-714-0 436 322.5 175.5 306 0355 36 120 70 70 131 - 154 12 64 .4 171
RK70H 645 231 492 452 - 182 103 140 436 322.5 175.5 306 0355 43 120 70 70 138 - 154 12 64 .4 171
RK80H-1 710 246 516 471 77 .6 199 124 150 467 358 196 334 0362 36 132.5 72 68 140 98 160 8 - -
RK95H-1 710 246 516 471 77 .6 199 124 150 467 358 196 334 0370 43 132.5 72 68 147 98 160 8 - -
RK105H-2 750.5 254 521 481 80 .5 212 111 155 474 369.5 201 .5 341 .5 0380 50 135.5 75 95 157 - 170 10 - -
RK125H-2 750.5 254 521 481 80 .5 212 111 155 474 369.5 201 .5 341 .5 0380 50 135.5 75 95 157 - 170 10 - -

RK SERIES
Detail of Flywheel
Optional PTO (Optional at extra cost)
14912-84514 (PTO shaft) 1 pc .
01153-51035 (Bolt) 3 pcs .
04512-50100 (Washer spring) 3 pcs .
Surface to which flywheel 05919-00750 (Key gradient) 1 pc .
adaptor is attached
3-011 hole
Mild
IFUN
FaM
~r-
3-M10
7H8
O
00
r
N
LT=44*.~q~t,
55
3-M10
107
ER/KND SERIES
Detail of Flywheel
Optional PTO (Optional at extra cost)
14943-84413 (PTO shaft) 1 pc .
01153-51040 (Bolt) 3 pcs .
04512-50100 (Washer spring) 3 pcs .
05919-01280 (Key gradient) 1 pc .
3-M10
E
ID
v
O
Standard Accessories
Model RK SERIES ER/KND SERIES
Fuel tank 1 1
Air cleaner 1 1
Muffler (silencer) 1 1
Engine eye bolt 1 1
Instruction manual 1 1
Maintenance tool bag 1 1
12-14mm box spanner 1 1
10-12mm spanner 1 1
14-17mm spanner 1 1
19-22mm spanner 1 1
+,-driver 1 1